HCT-372 Equivalent & Substitute Parts

Part Overview

The HCT-372 is a 2.1 µH shielded toroidal inductor manufactured by API Delevan Inc., rated for 13.9 A continuous current with a maximum DC resistance of 4 mOhm. This component is designed for surface mount applications requiring low-inductance, high-current power delivery in compact form factors.

The HCT-372 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor.

Substiute Parts

HCT-372

API Delevan Inc.In Stock: 1064HCT-372 Datasheet

Current PartRFQ

PE-53680NL

Pulse ElectronicsIn Stock: 2008PE-53680NL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCT-372 is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value within acceptable tolerance for circuit function
• Current rating sufficient to handle design current requirements
• DC resistance matching or lower than original specification
• Surface mount package compatibility with PCB footprint
• Operating temperature range encompassing application requirements
• Physical dimensions compatible with available board space

Secondary Compatibility Factors:

• Shielding characteristics (shielded vs. unshielded) affecting EMI performance
• Core material composition influencing frequency response
• Moisture sensitivity level and environmental robustness

The PE-53680NL from Pulse Electronics is identified as a substitute part. However, this substitution involves trade-offs in inductance value (1.32 µH vs. 2.1 µH) and current rating (11.5 A vs. 13.9 A), requiring circuit-level validation.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The HCT-372 is classified as obsolete, making the active PE-53680NL a logical alternative for ongoing supply requirements. The PE-53680NL maintains active manufacturing status, ensuring long-term availability and supply chain stability.

Compliance and Certification: The PE-53680NL achieves ROHS3 compliance, aligning with current environmental and regulatory standards. The HCT-372 is RoHS non-compliant, which may present procurement or regulatory constraints in certain markets or applications.

Electrical Parameter Alignment: Both parts share identical DC resistance specifications (4 mOhm max) and equivalent moisture sensitivity ratings. The PE-53680NL operates across a wider low-temperature range (−40°C vs. −30°C minimum), providing enhanced performance in cold environments.

Critical Differences Requiring Validation: The PE-53680NL exhibits lower inductance (1.32 µH vs. 2.1 µH, representing a 37% reduction) and reduced current rating (11.5 A vs. 13.9 A, representing a 17% reduction). These differences necessitate circuit-level analysis to confirm functional equivalence within the target application. The shift from shielded to unshielded construction may affect electromagnetic interference characteristics.

Physical Compatibility: Footprint dimensions are compatible within manufacturing tolerances. Both components maintain identical seated height (9.40 mm), supporting direct PCB layout substitution.

Frequently Asked Questions (FAQ)

Q: Can the PE-53680NL directly replace the HCT-372 in all applications?

A: Direct substitution requires validation of circuit performance. The PE-53680NL has lower inductance (1.32 µH vs. 2.1 µH) and reduced current rating (11.5 A vs. 13.9 A). Applications operating near the HCT-372's current limits or requiring precise inductance values must undergo electrical testing before deployment.

Q: What is the impact of switching from shielded to unshielded construction?

A: The HCT-372 is shielded; the PE-53680NL is unshielded. Shielding reduces radiated electromagnetic interference. In noise-sensitive circuits, the unshielded PE-53680NL may introduce additional EMI. Circuit layout and filtering strategies should be evaluated accordingly.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. The PE-53680NL dimensions (15.75 × 15.37 mm) are compatible with the HCT-372 footprint (15.62 × 15.24 mm) within standard manufacturing tolerances. Both components have identical seated height (9.40 mm), supporting direct layout substitution.

Q: Does the PE-53680NL meet current environmental standards?

A: Yes. The PE-53680NL is ROHS3 compliant, meeting current environmental regulations. The HCT-372 is RoHS non-compliant, which may restrict procurement in regulated markets.

Q: What is the temperature performance difference?

A: The PE-53680NL operates from −40°C to 130°C, while the HCT-372 operates from −30°C to 130°C. The PE-53680NL provides 10°C additional low-temperature margin, beneficial for cold-environment applications.

Q: Is the DC resistance equivalent between the two parts?

A: Yes. Both the HCT-372 and PE-53680NL specify a maximum DC resistance of 4 mOhm, ensuring equivalent resistive losses in power delivery applications.

Q: What supply chain advantages does the PE-53680NL offer?

A: The PE-53680NL carries active product status with 1900 units in stock, compared to the obsolete HCT-372. Active manufacturing ensures long-term availability and reduces supply chain risk for new designs or production continuity.